What methods are there for protecting flowers from the cold over winter? Master the key points to get through winter safely

Mulching method: Before frost arrives, cover the seedbed surface with dry grass, fallen leaves, horse manure, straw mats and other materials, and do not clear the seedbed surface until after the last frost. Mounding method: Mound soil around the flowers in good time, and after spring arrives (before the flowers sprout), rake the mounded soil away. Smoking method: Use smoking to prevent frost damage; during smoking, the smoke and water vapor form a dense haze that can reduce the loss of soil heat. Generally, once the temperature drops to close to 0°C, smoking can begin.